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#1
10-17-2009, 01:08 PM
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95 9C1 LT1 injector issues...
Hey all, my '95 is having intermittent injector failure. I diagnosed this by using the stethoscope/screwdriver trick to listen, the car still has the original opti/plugs/wires and has 120k on the clock.
When I wiggle the wires for the number 7 injector, it either solves the problem or makes it come back, my question is this: Is there any other things besides bad wiring that would cause the #7 injector to not fire? By the way, #7 ohms out @12.8, the manual says 11.2-12.4, is being higher better or worse? Thanks guys, Tony 
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#2
10-17-2009, 03:35 PM
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On a side note, is there any way to check reference voltage from the PCM to the injectors? And if so, what value would I look for?
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#3
10-17-2009, 04:54 PM
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if you wiggle the wire and it goes away/comes back, then injector wiring harness clip is bad. replace and see if problem persists.
__________________
Matt Hoffman  Exhaust Video Burnout!! New Quick Video! ET: 13.5272 @99.33mph 1.82 60' ^^ Gone 7/12/09, but not forgotten 
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#4
10-17-2009, 05:13 PM
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By clip do you mean the connector that goes on top of the injector itself? Thanks.
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#6
10-18-2009, 11:05 AM
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Quote:
yes sir. I had a miss that went away on the number 7 cylinder. Turns out the pin on the inside of the injector connector was broken, and when it would shift certain ways it wouldn't contact. Napa has a new connector..
__________________
Matt Hoffman Exhaust Video Burnout!! New Quick Video! ET: 13.5272 @99.33mph 1.82 60' ^^ Gone 7/12/09, but not forgotten
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#7
11-04-2009, 05:02 PM
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Ok, update, got number 7 fixed and all the other injectors by bending the pins slightly on each injector top, ensuring absolute contact at all times.
 There is still a rolling miss, around every 10-20 engine revolutions, and doesn't seem to be a particular cylinder either. I was wiggling with wires on the coil( car off, key out)and got quite a big shock, does this mean my coil's goin' ?I'm going to do the voltage test as mentioned in the haynes manual later today and keep it up to date, Later, Tony
__________________
'95 9C1 LT1 
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#9
11-05-2009, 12:27 AM
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Quote:
__________________
ISSF MEMBER #282 94 9C1,SS clone,DCM,herter pcm,SSRI,HA/F-body sway bars,3.42's Bonnies,floorshift,Stillen front bumper,billet grille,Smoothy rears ,white face Z-28 dash, Dynomax mufflers,Tri-Y,eibach,J&M control arms,NOS 100 shot,MSD digital+6&coil,MSD super conductors,metco safety loop,Dynotech driveshaft 12.98@110MPH 1.61 60' shift point and rev limiter problems STOLEN ON JUNE 8TH OR 9TH 2003 FROM TACOMA,WA
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#10
11-05-2009, 02:31 AM
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Hey you got any more pics of that wagon?
__________________
'95 9C1 LT1
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